Means for drying textile materials



May 17 192 7. 1,629,157

'H. KRANTZ' v MEANS FORDRYING TEXTILE MATERIALS Filed March 24. 1922 2Sheets-Shat 1 J ZTZWP/VE y' May 17, 1927.

H. KRANTZ MEANS FOR DRYING TEXf IILE MATERIALS Filed March 24. 1922 i 2Sheets-Shei 2 Patented May 1 7, 1927.

UNITED. STATES f T2,. OE AAGHEN, GERMANY.

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Applicatii'm med March 24, 1922, Serial no.

' This invention relates to a method and an apparatus for dryingmaterials, espe- ,cially textile materials. 5

' superimposed bobbins." A

: the outside or vice .versa. The flowin stean igj expels part ofithewatermechamcalyffrom} a dryer At the present date textile materialsaremostly dried with, warm air, after part of the water has been removedtherefrom mechanically by squeezing, suction" (aspirin tion), orcentrifuging. The drying is car- ;ried on in machines, e.g-.-tenting-dryers, and

rack machines. These machines re ofvery large dimensions, re uire alarge space,have high runnin (relia le workmen), consume much steam orheating the dryin air,'andalarge amount of power for circu ating thedrying air; are slow in operation, and'utilize the heat contained in thedry air in an uneconomical, unfavorable manner. It-has al-v ready beenproposed to dry textile materials directly with steam. Now, the presentinvention has for its object to provide a process and apparatus fordrying textile materials, bywhich the aforementioned disadvantagesare'obvia'ted and which process may be applied for dry ing loose vfibrous materials, yarns and fabrics.

In the drawings: v 4 Fig. 1 is a vertical sectional view throughconstructed in accordance with this invention. i Fig. 2 is a similarview illustrating a modification in which a ing disk is employed, p

' Fig.3 is a similar view illustrating the manner of handling loosematerial, and

Figure 4 is a sectional view illustrating a modification similar tothat. seen in Fig. 2

but adapted'for the drying of a plurality 0 .According to the invention,the wa ter can tained in. the textile materiaPis; partly Lex- 'pelledmechanically. by means-bf steam" .passed through the S3J1le,"thBI.16Si'/, of-the I water being removed'by means of heat and air, whichair is blown or sucked throu h. the material 'to' be. dried". The restofct water canalso be removedbysubjectingfthej materialto a. vacuum. r

In dry 'g materials" steam is v first sent":

-I ex enditure of h emethod escrihedmay be'earriedout by the aid'ofvarious-devices, some preferred embodiments of which arediagrammatically through the same from the inside towards 1 thematerial. .When the flow-oi'thejsteami is I'arrested after the-mechanical\JeXPuISiOn of the water, the material'is".- nearl y .buteven in such event thedegree pi at squeezing or pack-- 10f the d$46,426, and in Germany January 15, 1917.

tained is greater than that obtained by squeezlng, suction. orvcentrifuging. The

a water remaining in the material can now be expelled ina favorablemanner and with high rapidityby utilizing the heat accumu- .lated in thematerial from the steam treatment and in the waterremaining therein, by

subjecting the material to a vacuum or by blowing. or aspirating' air orheated air through the material.

- -The advantages connected with the inven-- tion are economy ininstallation running cost, space, steam power, and time. The energy 1nthe steam ls'utilized directly for driving out the water from the driping wet f material. This expulsion is qulc er and would. otherwise erequired. Thesteam which has been. used for removing the water occupiesthe channels between the fibres of" the material which were previouslyfilled with water, and opens them. By this means the material .to bedried, becomes extremely perviousto air. This permeability to air I i isso considerable that itis'poss'ible for ex-v ample to blowdarge. amountsof air throu' h tightly wound quick-traverse bobbins means of a weaklow-pressure blower, ;i.' e. without any appreciable expenditure of} yng its heat is for the water'removed and heated by order to preventanysteamgescaping unused it is advisable to use only-'so much steam as isrequired'to bring thematerial j into a condition specially suitable forthe-jg subsequent final. drying by'f heated air, that g water, heat thematerial to the 'tem erature, f air and 'make 'itsu ciently, pervious'toanthat. 'l:'1rge quantities of 8.11:1"; ."can ibe blown? through: thedirection "of; its 1 is to say to removea siiflicient amount of largest1 diameter without anyv gconsiderabl'e Wei'. a

.o'tthejaccompa'nying drawn! ill'ustrated, by way of erample, iniEi'gs-.

The heat of the expelling steam eats the material to th'e temperature'ofthe" 3 air; The steam remainingin the materialv is condensed by the din'gair, and ldrymg. The; I

the steam" can:

be used again in the method.j-

I method for drying a quick-traverse bobbin 4 or any other 'coil' offibre. The apparatus I comprise'sa closable vessel 5 in the bottom ofwhich is mounted a perforated spindle 6 .in communication with the outerupon which is slipped the quick-traverse bobbin 4, wound upon aperforated shell 7 The interior of the perforated spindle 6 is phere.Connected tothe upper end of the vessel 5 is a T-shaped pipe 8, thebranches of which have mounted therein controllable valves 9 and 10. Thevessel 5 is connected by the valve 9 to a steam pipe (not shown) and bythe valve 10 to an air pump. In ,the'position according to .Fig. l, theValve 9 is open, while the valve 10 is closed. Therefore steam will flowthrough the quick-travpel therefrom part of the water contained in thesame. After this has been done, the position of the valves 9 and. 10 isreversed and the aforementioned air-pump operated,

so that air is drawn through the open end of the spindle 6 from insidethe quick-traverse bobbin towards the outside. By utiliz-' ing thus theheat accumulated in the quicktraverse bobbin 4 from the steam treatment,

' the final traces of water are removed from thebobbin. Instead ofconnecting the valve 10 to an' air pump, it may also be connected with alow-pressure blower by .means of V fect of these packing discs is tocause the" like a wet sponge held in which heated air is passedthrough'the quicktraverse bobbin from the outside towardsthe'insideafter the steam treatment In the devices according toFigs. 2 and 3,

which are similar to that shown inFig. 1, packing discs 11 are used forthe purpose of intensi ying theexpulsion of the water by means of steam,especially in quick-traverse bobbins, laps and loose material. Theefmaterial to be compressed on all sides b the expulsion steam, andthereby squeeze out the hand and gripped on all "sides. p

- Fig. 2 shows a device in which a quick traverse bobbin 4 can beadvantageously dried with the use'of packin discs. The interior of theclosable cham r, 5' can be placed in communication with a-steam pipe bythe valve 9,-or in communication .with a pressure air pipe'b the valve"10. The interior of said cham er 5- is connected to the outeratmosphere through the opening 6' provided at the bottom of the chamber.The quick-traverse bobbin 4 to be dried is soplacedon the bottom of thechamber 5 atmoshowthese bobbins me. be placed side by side within thechamber, ut' also how they may shell 7 can be inserted into the opening6".

. position shown, steam passes from the outside towards the insidethrough the quicktraverse bobbins and .into the air. The mechanicalexpulsion of "the water by the inflowing steam is accompanied by avsqueezmg of the coiled yarn. In the reversed position ofthe valves coldor warm air is forced from the outside towards theinside throughthequick-traverse bobbin, and

thereby theheat accumulated therein is utilized. Instead of pressureair, suction air may be used. Fig. shows the same devlce n anapplication for drying loose material. Fastened 35 r to the bottom ofthe closed chamber 5, are a perforated spindle 7 the interior of whichis in communication with the outer air, and a perforated cylinder 7'.Theloose material 4 to be driedis packed into the space be-. tween thespindle 7 and the cylinder walls 7', and the packing disc 11 is placedthereon. \Vith the valves in the position shown, steam enters from theoutside towards the inside through the loose material and the 9 sameprocedure is efiected as has been de scribed with reference tothequick-traverse bobbins'of Fig. 2. 1 V

.In order that the vessels 5 may be open able so that the material to bedried may be readily insertedand removed, the drawings illustrate thebottom walls 12 of the vessels to be held to the side walls by bolts orother quick-traverse -bobbins,'the same being inall respects similar tothat shown and described with reference to Fig. 2 except that in thepresent figure .the device is adaptedfor the drying of a large number ofthe quickrtraverse bobbins, said figure illustrating not only besuperimposed one upon the-other. within.--"

the chamber. In superimposing the bobbins suitable spacing discs 14 areemployed interposed betweenthe bobbins and each having central openings15, into which the protrud g .ing ends of the central shells, 7 extend,the thlckness of said discs being suflicient so that the protrudingshell ends'ofthe bobbins will be held spaced apart. In this arrangementthe drying steam will pass'from the. outside toward the inside throughall of the superimposed "bobbins" simultaneously and into. thecontinuous tubu lar opening provided by the aligned shells thatthe-protruding end of the perforated 7 and the openings ofdiscs 14,thence to openings the top of the pile,

the outer atmosphere through the openings 6' at the bottom of thechamber. By reversing the position of the valves. the air from the outeratmosphere will be drawn or forced upwardly through the aligned shells 7and 15 and will pass simultaneously outwardly throughall of thebobbins.-

The weight of the superimposed bobbins, as well as of the discs 14, andof the packing of cover discs 11,, which are placed upon will operate tomechanically squeeze or compress the bobbins, in the, drying operation.The chamber or vessel may of course be made of proportions suitable foraccommodating any desired number of superimposed bobbins.

Having thus described my invention, I claim is 1. An apparatus fordrying textile and the like materials, comprising a closable vessel forreceiving the material to be dried, said vessel having at one end anopening communicating with the outer atmosphcreand being provided atitsother end with a controllable valve for connecting the vessel to what Ia source of steam and with another control-'- lable valve for connectingthe vessel to a de-' vice for passing air through the vessel and thematerial contained therein, said material having a perforated tubularmember extending through .munic'ation wlth the opening communicating thevessel. with the outer aftmosphere, and a packing disc placed on thematerial which disc is provided with a recess for the reception of theend of said perforated tubular member.

2. An apparatus rials comprising a closable vessel having an the sameand being in com-' for drying textile mate-v openingin its botoin wall,controllable the interior of means operable for placin communication thevessel into and out 0 at will with a suitable drying medium, material tobe dried being carried upon perforated shells, each shell being adaptedto carry a body of said material and to be arthe ranged within thevessel one body above the v other, spacing discs" arranged between thesuperimposed bodies each having an openingtherethrough, the severalperforated shells being arranged in axial alignment and protruding fromthe bodies into the openings of the discs, and the interior of saidshells being in communication with each other and with the openingthrough vessel, all for use in An apparatus the manner set forth. fordrying textile and like materials, comprising a closable'vessel havingan opening through the'bottom wall thereof, a perforated'tubular member.within the vessel open at its opposite ends and having itslower endcommunicating with the opening'in the bottom wall of the vessel, thematerial to'be dried being adapted to be arranged in positionsurrounding said tubular member, a packing disk arranged to clo'e theupper 'end of said tubular member and adapted to rest upon the materialto be dried, and controllable means operable for directing a blast ofsuitable drying medium through ,the vessel and into the interior of saidtubular member for discharge downwardly therefrom into the atmosphere;

In testimony whereof I have signed my the bottom wall of the through thematerial.

